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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1968307Generated: October 29, 2026

Diisopropylethylamine → 2-{4-(2-({(2-(4-Chlorophenyl)-1,3-thiazol-4-yl)methyl}sulfanyl)-3,5-dicyano-6-(pyrrolidin-1-yl)pyridin-4-yl)phenoxy}ethyl 1-(tert-butoxycarbonyl)-L-prolyl-L-alaninate

https://huagongshe.com/reaction/1968307

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant1,2-Pyrrolidinedicarboxylic acid, 1-(1,1-dimethylethyl) ester, (2S)-HCID 85083—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Reactant1-Hydroxybenzotriazole hydrateHCID 2796029—
Reactant2-{4-(2-({(2-(4-chlorophenyl)-1,3-thiazol-4-yl)methyl}sulfanyl)-3,5-dicyano-6-(pyrrolidin-1-yl)pyridin-4-yl)phenoxy}ethyl L-alaninate trifluoroacetateHCID 68764702—
SolventDimethylformamideHCID 6228—
Product2-{4-(2-({(2-(4-Chlorophenyl)-1,3-thiazol-4-yl)methyl}sulfanyl)-3,5-dicyano-6-(pyrrolidin-1-yl)pyridin-4-yl)phenoxy}ethyl 1-(tert-butoxycarbonyl)-L-prolyl-L-alaninateHCID 68762855—

Reaction Steps

202 mg (0.942 mmol) of 1-(tert-butoxycarbonyl)-L-proline together with 246 mg (1.284 mmol) of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride, 157 mg (1.027 mmol) of 1-hydroxy-1H-benzotriazole hydrate and 0.746 ml (4.281 mmol) of N,N-diisopropylethylamine were dissolved in 7.5 ml of DMF, after which 650 mg (0.856 mmol) of 2-{4-(2-({(2-(4-chlorophenyl)-1,3-thiazol-4-yl)methyl}sulfanyl)-3,5-dicyano-6-(pyrrolidin-1-yl)pyridin-4-yl)phenoxy}ethyl L-alaninate trifluoroacetate were added. After stirring at room temperature overnight, the reaction mixture was purified by preparative HPLC (acetonitrile/water). This gave 495 mg (69% of theory) of the target compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08420825B2
Source datasetuspto-grants-2013_04
ORD IDord-3af07387b6e8496a8da4b162fba16aa0
Source noteuspto-grants-2013_04